To trade away or sell items instantly you’ll need: a Steam Guard Mobile Authenticator enabled on your account for at least 7 days. Otherwise, to give you time to discover and stop items from leaving your account if your account is compromised, items will be held by Steam for up to 15 days.

Trade and Market Confirmations

Now you can confirm trades and market sales through the Steam Mobile App. Ensure items never leave your account without your approval.

Get the best level of Steam account protection with the Steam Mobile App. Use the app to enable your phone as a Steam Guard Mobile Authenticator to verify your identity. The authenticator generates a code that you need to enter every time that you log on to your Steam account. The code changes every 30 seconds, can be used only once, and is unguessable.